Evidence map›Paper›PMID 36357374›Full record

ArticleNature communications2022

Emergence of distinct electronic states in epitaxially-fused PbSe quantum dot superlattices.

Mahmut S Kavrik, Jordan A Hachtel, Wonhee Ko, Caroline Qian, Alex Abelson, Eyup B Unlu, Harshil Kashyap, An-Ping Li, Juan C Idrobo, Matt Law

Erratum issuedOpen access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 25% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 16 citations in OpenAlex.

  1. Pursuing Band-like Transport in Colloidal Quantum Dot Assemblies.The journal of physical chemistry letters · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. PbIACS nano · 2024
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 1 country.

Mahmut S Kavrik *Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. mkavrik@lbl.gov.
Jordan A Hachtel *Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA. hachtelja@ornl.gov.ORCID http://orcid.org/0000-0002-9728-0920
Wonhee Ko *Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA. kow1@ornl.gov.ORCID http://orcid.org/0000-0002-6155-1485
Caroline QianDepartment of Chemical and Biomolecular Engineering, University of California, Irvine, CA, USA.
Alex AbelsonDepartment of Materials Science and Engineering, University of California, Irvine, CA, USA.
Eyup B UnluDepartment of Materials Science and Engineering, University of California, San Diego, CA, USA.
Harshil KashyapDepartment of Materials Science and Engineering, University of California, San Diego, CA, USA.
An-Ping LiCenter for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA.ORCID http://orcid.org/0000-0003-4400-7493
Juan C IdroboMaterials Science and Engineering Department, University of Washington, Seattle, WA, USA.ORCID http://orcid.org/0000-0001-7483-9034
Matt LawDepartment of Chemical and Biomolecular Engineering, University of California, Irvine, CA, USA. matt.law@uci.edu.ORCID http://orcid.org/0000-0001-7645-9908
Oak Ridge National Laboratory · USUniversity of California, Irvine · USUniversity of California San Diego · USLawrence Berkeley National Laboratory · USUniversity of Washington · US

Funding

DOE | Advanced Research Projects Agency - Energy (Advanced Research Projects Agency - Energy - U.S. Department of Energy) AC0500OR22725
6 · The paper itself

Abstract

Quantum coupling in arrayed nanostructures can produce novel mesoscale properties such as electronic minibands to improve the performance of optoelectronic devices, including ultra-efficient solar cells and infrared photodetectors. Colloidal PbSe quantum dots (QDs) that self-assemble into epitaxially-fused superlattices (epi-SLs) are predicted to exhibit such collective phenomena. Here, we show the emergence of distinct local electronic states induced by crystalline necks that connect individual PbSe QDs and modulate the bandgap energy across the epi-SL. Multi-probe scanning tunneling spectroscopy shows bandgap modulation from 0.7 eV in the QDs to 1.1 eV at their necks. Complementary monochromated electron energy-loss spectroscopy demonstrates bandgap modulation in spectral mapping, confirming the presence of these distinct energy states from necking. The results show the modification of the electronic structure of a precision-made nanoscale superlattice, which may be leveraged in new optoelectronic applications.

Identifiers

PMID36357374
PMCPMC9649673
OpenAlexW4308709532

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.